db/schema.sql

@@ -42,19 +42,34 @@ CREATE TABLE markets(
     end_date TIMESTAMP WITH TIME ZONE NOT NULL,
     settled_at TIMESTAMP WITH TIME ZONE,
     user_id INTEGER NOT NULL REFERENCES users(id),
-    invoice_id INTEGER NOT NULL UNIQUE REFERENCES invoices(id),
+    invoice_id INTEGER NOT NULL UNIQUE REFERENCES invoices(id)
-    lmsr_b FLOAT NOT NULL
 );
 
+CREATE TABLE shares(
+    id SERIAL PRIMARY KEY,
+    market_id INTEGER NOT NULL REFERENCES markets(id),
+    description TEXT NOT NULL,
+    win BOOLEAN
+);
+
+CREATE TYPE order_side AS ENUM ('BUY', 'SELL');
+
 CREATE TABLE orders(
     id SERIAL PRIMARY KEY,
-    market_id INTEGER NOT NULL REFERENCES markets(id),
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    deleted_at TIMESTAMP WITH TIME ZONE,
+    share_id INTEGER NOT NULL REFERENCES shares(id),
     user_id INTEGER NOT NULL REFERENCES users(id),
+    side ORDER_SIDE NOT NULL,
     quantity BIGINT NOT NULL,
-    outcome INTEGER NOT NULL,
+    price BIGINT NOT NULL,
-    invoice_id INTEGER REFERENCES invoices(id)
+    invoice_id INTEGER REFERENCES invoices(id),
+    order_id INTEGER REFERENCES orders(id)
 );
 
+ALTER TABLE orders ADD CONSTRAINT order_price CHECK(price > 0 AND price < 100);
+ALTER TABLE orders ADD CONSTRAINT order_quantity CHECK(quantity > 0);
+
 CREATE TABLE withdrawals(
     id SERIAL PRIMARY KEY,
     created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,

docker-compose.yml

@@ -14,8 +14,7 @@ services:
       - delphi:/var/lib/postgresql/data
       - ./db/init.sql:/docker-entrypoint-initdb.d/init.sql
       - ./db/schema.sql:/docker-entrypoint-initdb.d/schema.sql
-      # for some reason this can't be mounted on first run
+      - ./postgresql.conf:/var/lib/postgresql/data/postgresql.conf # for some reason this can't be mounted on first run
-      - ./db/postgresql.conf:/var/lib/postgresql/data/postgresql.conf
 
 volumes:
   delphi:

lib/lmsr/lmsr.go

@@ -1,51 +0,0 @@
-package lmsr
-
-import "math"
-
-// Robin Hanson's Logarithmic Market Scoring Rule (LMSR) market maker
-// https://mason.gmu.edu/~rhanson/mktscore.pdf
-
-// "The market maker keeps track of how many shares have been purchased by
-// traders in total so far for each outcome: that is, the number of shares
-// outstanding for each outcome. Let q1 and q2 be the number (“quantity”)
-// of shares outstanding for each of the two outcomes. The market maker also
-// maintains a cost function C(q1,q2) which records how much money traders
-// have collectively spent so far, and depends only on the number of shares
-// outstanding, q1 and q2. For LMSR, the cost function is [this]:
-//
-// <see code>
-// ...
-//
-// The parameter “b” controls the maximum possible amount of money the market
-// maker can lose (which happens to be b*ln2 in the two-outcome case). The
-// larger “b” is, the more money the market maker can lose. But a larger “b”
-// also means the market has more liquidity or depth, meaning that traders can
-// buy more shares at or near the current price without causing massive price swings."
-//
-// -- David Pennock, http://blog.oddhead.com/2006/10/30/implementing-hansons-market-maker/
-func binaryLMSRcost(b float64, q1 float64, q2 float64) float64 {
-	return b * math.Log(math.Pow(math.E, q1/b)+math.Pow(math.E, q2/b))
-}
-
-func Quote(b float64, q1 int, q2 int, dq1 int) float64 {
-	// q1 must always be the quantity of shares that are bought / sold.
-	// If you want to change q2, you need to swap q1 and q2 as input arguments.
-	fq1 := float64(q1)
-	fq2 := float64(q2)
-	fdq1 := float64(dq1)
-	return binaryLMSRcost(b, fq1+fdq1, fq2) - binaryLMSRcost(b, fq1, fq2)
-}
-
-func Price(b float64, q1 int, q2 int) float64 {
-	//
-	// q1 must always be the quantity of shares that are bought / sold.
-	// If you want to change q2, you need to swap q1 and q2 as input arguments.
-	//
-	// An infinitesimal share would cost this much:
-	//
-	//   p = e^{q1/b} / ( e^{q1/b} + e^{q2/b} )
-	//
-	// However, to find the price of buying one full share
-	// we need to use the cost function.
-	return Quote(b, q1, q2, 1)
-}

lnd/lnd.go

@@ -71,7 +71,7 @@ func (lnd *LNDClient) CheckInvoices(db *db.DB) {
 			}
 
 			if !inv.State.IsFinal() {
-				log.Printf("invoice pending: %s expiry=%s", h, time.Until(expiresAt))
+				log.Printf("invoice pending: %s %s", h, time.Until(expiresAt))
 				continue
 			}
 

public/css/_tw-input.css

@@ -78,15 +78,6 @@
     padding: 0 0.25em;
   }
 
-  button:disabled {
-    color: var(--muted);
-    border-color: var(--muted);
-  }
-
-  .htmx-request {
-    color: var(--muted);
-  }
-
   h1 {
     font-size: 24px
   }
@@ -96,10 +87,6 @@
     aspect-ratio: 560/315;
   }
 
-  input {
-    color: var(--black);
-  }
-
   .text-muted {
     color: var(--muted);
   }
@@ -124,7 +111,7 @@
     color: var(--fg-success);
   }
 
-  .neon.success:hover, .neon.success.active {
+  .neon.success:hover {
     background-color: var(--fg-success);
     color: var(--white);
   }
@@ -134,7 +121,7 @@
     color: var(--fg-error);
   }
 
-  .neon.error:hover, .neon.error.active {
+  .neon.error:hover {
     background-color: var(--fg-error);
     color: var(--white);
   }

server/router/handler/invoice.go

@@ -57,7 +57,6 @@ func HandleInvoice(sc context.Context) echo.HandlerFunc {
 
 var (
 	marketRegexp = regexp.MustCompile("^create market (?P<id>[0-9]+)$")
-	orderRegexp  = regexp.MustCompile("^create order [0-9]+ for market (?P<id>[0-9]+)$")
 )
 
 func toRedirectUrl(description string) templ.SafeURL {
@@ -66,9 +65,5 @@ func toRedirectUrl(description string) templ.SafeURL {
 		marketId := m[marketRegexp.SubexpIndex("id")]
 		return templ.SafeURL(fmt.Sprintf("/market/%s", marketId))
 	}
-	if m = orderRegexp.FindStringSubmatch(description); m != nil {
-		marketId := m[marketRegexp.SubexpIndex("id")]
-		return templ.SafeURL(fmt.Sprintf("/market/%s", marketId))
-	}
 	return "/"
 }

server/router/handler/market.go

@@ -3,12 +3,9 @@ package handler
 import (
 	"database/sql"
 	"fmt"
-	"math"
 	"net/http"
-	"strconv"
 	"time"
 
-	"git.ekzyis.com/ekzyis/delphi.market/lib/lmsr"
 	"git.ekzyis.com/ekzyis/delphi.market/server/router/context"
 	"git.ekzyis.com/ekzyis/delphi.market/server/router/pages"
 	"git.ekzyis.com/ekzyis/delphi.market/server/router/pages/components"
@@ -33,14 +30,7 @@ func HandleCreate(sc context.Context) echo.HandlerFunc {
 			endDate        = c.FormValue("end_date")
 			hash           lntypes.Hash
 			paymentRequest string
-			cost           = lnwire.MilliSatoshi(10_000e3) // creating a market costs 10k sats
+			cost           = lnwire.MilliSatoshi(1000e3)
-
-			// The cost is used to fund the market.
-			// Maximum possible amount of money the market maker can lose is b*ln2.
-			// This means if we can only payout as many sats as we paid for the market,
-			// we need to solve for b: b = cost / ln2
-			b = (float64(cost) / 1000) / math.Log(2)
-
 			expiry         = int64(600)
 			expiresAt      = time.Now().Add(time.Second * time.Duration(expiry))
 			invoiceId      int
@@ -72,10 +62,10 @@ func HandleCreate(sc context.Context) echo.HandlerFunc {
 		}
 
 		if err = tx.QueryRowContext(ctx, ""+
-			"INSERT INTO markets (question, description, end_date, user_id, invoice_id, lmsr_b) "+
+			"INSERT INTO markets (question, description, end_date, user_id, invoice_id) "+
-			"VALUES ($1, $2, $3, $4, $5, $6) "+
+			"VALUES ($1, $2, $3, $4, $5) "+
 			"RETURNING id",
-			question, description, endDate, u.Id, invoiceId, b).Scan(&marketId); err != nil {
+			question, description, endDate, u.Id, invoiceId).Scan(&marketId); err != nil {
 			return err
 		}
 
@@ -99,224 +89,29 @@ func HandleCreate(sc context.Context) echo.HandlerFunc {
 func HandleMarket(sc context.Context) echo.HandlerFunc {
 	return func(c echo.Context) error {
 		var (
-			db       = sc.Db
+			db  = sc.Db
-			ctx      = c.Request().Context()
+			ctx = c.Request().Context()
-			u        = types.User{}
+			id  = c.Param("id")
-			id       = c.Param("id")
+			m   = types.Market{}
-			quantity = c.QueryParam("q")
+			u   = types.User{}
-			q        int64
+			err error
-			m        = types.Market{}
-			mU       = types.User{}
-			l        = types.LMSR{}
-			total    float64
-			quote0   = types.MarketQuote{}
-			quote1   = types.MarketQuote{}
-			uQ0      int
-			uQ1      int
-			err      error
 		)
 
-		if c.Get("session") != nil {
-			u = c.Get("session").(types.User)
-		} else {
-			u.Id = -1
-		}
-
-		if quantity == "" {
-			q = 1
-		} else if q, err = strconv.ParseInt(quantity, 10, 64); err != nil {
-			return echo.NewHTTPError(http.StatusBadRequest, "q must be integer")
-		}
-
 		if err = db.QueryRowContext(ctx, ""+
-			"SELECT m.id, m.question, m.description, m.created_at, m.end_date, m.lmsr_b, "+
+			"SELECT m.id, m.question, m.description, m.created_at, m.end_date, "+
-			"u.id, u.name, u.created_at, u.ln_pubkey, u.nostr_pubkey, u.msats "+
+			"u.id, u.name, u.created_at, u.ln_pubkey, u.nostr_pubkey, msats "+
-			"FROM markets m "+
+			"FROM markets m JOIN users u ON m.user_id = u.id "+
-			"JOIN users u ON m.user_id = u.id "+
+			"WHERE m.id = $1", id).Scan(
-			"JOIN invoices i ON m.invoice_id = i.id "+
+			&m.Id, &m.Question, &m.Description, &m.CreatedAt, &m.EndDate,
-			"WHERE m.id = $1 AND i.confirmed_at IS NOT NULL", id).Scan(
+			&u.Id, &u.Name, &u.CreatedAt, &u.LnPubkey, &u.NostrPubkey, &u.Msats); err != nil {
-			&m.Id, &m.Question, &m.Description, &m.CreatedAt, &m.EndDate, &l.B,
-			&mU.Id, &mU.Name, &mU.CreatedAt, &mU.LnPubkey, &mU.NostrPubkey, &mU.Msats); err != nil {
-			if err == sql.ErrNoRows {
-				return echo.NewHTTPError(http.StatusNotFound)
-			}
-			return err
-		}
-		m.User = mU
-
-		if err = db.QueryRowContext(ctx, ""+
-			"SELECT "+
-			"COALESCE(SUM(o.quantity) FILTER(WHERE o.outcome = 0), 0) AS q1, "+
-			"COALESCE(SUM(o.quantity) FILTER(WHERE o.outcome = 1), 0) AS q2, "+
-			"COALESCE(SUM(o.quantity) FILTER(WHERE o.outcome = 0 AND o.user_id = $2), 0) AS uq1, "+
-			"COALESCE(SUM(o.quantity) FILTER(WHERE o.outcome = 1 AND o.user_id = $2), 0) AS uq2 "+
-			"FROM orders o "+
-			"JOIN markets m ON o.market_id = m.id "+
-			"JOIN invoices i ON o.invoice_id = i.id "+
-			// QUESTION: Should unpaid orders contribute to quantity or not?
-			//
-			// The answer is relevant for concurrent orders:
-			// If they do, one can artificially increase the price for others
-			// by creating a lot of pending orders.
-			// If they don't, one can buy infinite amount of shares at the same price
-			// by creating a lot of small but concurrent orders.
-			// I think this means that pending order must be scoped to a user
-			// but this isn't sybil resistant.
-			//
-			// For now, we will ignore pending orders.
-			"WHERE o.market_id = $1 AND i.confirmed_at IS NOT NULL", id, u.Id).Scan(
-			&l.Q1, &l.Q2, &uQ0, &uQ1); err != nil {
 			if err == sql.ErrNoRows {
 				return echo.NewHTTPError(http.StatusNotFound)
 			}
 			return err
 		}
 
-		total = lmsr.Quote(l.B, l.Q1, l.Q2, int(q))
+		m.User = u
-		quote0 = types.MarketQuote{
-			Outcome:    0,
-			AvgPrice:   total / float64(q),
-			TotalPrice: total,
-			Reward:     float64(q) - total,
-		}
 
-		total = lmsr.Quote(l.B, l.Q2, l.Q1, int(q))
+		return pages.Market(m).Render(context.RenderContext(sc, c), c.Response().Writer)
-		quote1 = types.MarketQuote{
-			Outcome:    1,
-			AvgPrice:   total / float64(q),
-			TotalPrice: total,
-			Reward:     float64(q) - total,
-		}
-
-		return pages.Market(m, quote0, quote1, uQ0, uQ1).Render(context.RenderContext(sc, c), c.Response().Writer)
-	}
-}
-
-func HandleOrder(sc context.Context) echo.HandlerFunc {
-	return func(c echo.Context) error {
-		var (
-			db             = sc.Db
-			lnd            = sc.Lnd
-			tx             *sql.Tx
-			ctx            = c.Request().Context()
-			u              = c.Get("session").(types.User)
-			id             = c.Param("id")
-			quantity       = c.FormValue("q")
-			outcome        = c.FormValue("o")
-			q              int64
-			o              int64
-			m              = types.Market{}
-			mU             = types.User{}
-			l              = types.LMSR{}
-			totalF         float64
-			total          int
-			hash           lntypes.Hash
-			paymentRequest string
-			expiry         = int64(60)
-			expiresAt      = time.Now().Add(time.Second * time.Duration(expiry))
-			invoiceId      int
-			invDescription string
-			orderId        int
-			qr             templ.Component
-			err            error
-		)
-
-		if quantity == "" {
-			return echo.NewHTTPError(http.StatusBadRequest, "q must be given")
-		} else if q, err = strconv.ParseInt(quantity, 10, 64); err != nil {
-			return echo.NewHTTPError(http.StatusBadRequest, "q must be integer")
-		}
-
-		if outcome == "" {
-			return echo.NewHTTPError(http.StatusBadRequest, "o must be given")
-		} else if o, err = strconv.ParseInt(outcome, 10, 64); err != nil {
-			return echo.NewHTTPError(http.StatusBadRequest, "o must be integer")
-		}
-		if o < 0 && o > 1 {
-			return echo.NewHTTPError(http.StatusBadRequest, "o must be 0 or 1")
-		}
-
-		// TODO: refactor since this uses same queries as function above
-		if err = db.QueryRowContext(ctx, ""+
-			"SELECT m.id, m.question, m.description, m.created_at, m.end_date, m.lmsr_b, "+
-			"u.id, u.name, u.created_at, u.ln_pubkey, u.nostr_pubkey, u.msats "+
-			"FROM markets m "+
-			"JOIN users u ON m.user_id = u.id "+
-			"JOIN invoices i ON m.invoice_id = i.id "+
-			"WHERE m.id = $1 AND i.confirmed_at IS NOT NULL", id).Scan(
-			&m.Id, &m.Question, &m.Description, &m.CreatedAt, &m.EndDate, &l.B,
-			&mU.Id, &mU.Name, &mU.CreatedAt, &mU.LnPubkey, &mU.NostrPubkey, &mU.Msats); err != nil {
-			if err == sql.ErrNoRows {
-				return echo.NewHTTPError(http.StatusNotFound)
-			}
-			return err
-		}
-		m.User = mU
-
-		if err = db.QueryRowContext(ctx, ""+
-			"SELECT "+
-			"COALESCE(SUM(o.quantity) FILTER(WHERE o.outcome = 0), 0) AS q1, "+
-			"COALESCE(SUM(o.quantity) FILTER(WHERE o.outcome = 1), 0) AS q2 "+
-			"FROM orders o "+
-			"JOIN markets m ON o.market_id = m.id "+
-			"JOIN invoices i ON o.invoice_id = i.id "+
-			"WHERE o.market_id = $1 AND i.confirmed_at IS NOT NULL", id).Scan(
-			&l.Q1, &l.Q2); err != nil {
-			if err == sql.ErrNoRows {
-				return echo.NewHTTPError(http.StatusNotFound)
-			}
-			return err
-		}
-
-		if o == 0 {
-			totalF = lmsr.Quote(l.B, l.Q1, l.Q2, int(q))
-		} else if o == 1 {
-			totalF = lmsr.Quote(l.B, l.Q2, l.Q1, int(q))
-		}
-
-		total = int(math.Round(totalF * 1000))
-
-		if tx, err = db.BeginTx(ctx, &sql.TxOptions{Isolation: sql.LevelReadCommitted}); err != nil {
-			return err
-		}
-
-		if hash, paymentRequest, err = lnd.Client.AddInvoice(ctx,
-			&invoicesrpc.AddInvoiceData{
-				Value:  lnwire.MilliSatoshi(total),
-				Expiry: expiry,
-			}); err != nil {
-			return err
-		}
-
-		if err = tx.QueryRowContext(ctx, ""+
-			"INSERT INTO invoices (user_id, msats, hash, bolt11, expires_at) "+
-			"VALUES ($1, $2, $3, $4, $5) "+
-			"RETURNING id",
-			u.Id, total, hash.String(), paymentRequest, expiresAt).Scan(&invoiceId); err != nil {
-			return err
-		}
-
-		if err = tx.QueryRowContext(ctx, ""+
-			"INSERT INTO orders (market_id, user_id, quantity, outcome, invoice_id) "+
-			"VALUES ($1, $2, $3, $4, $5) "+
-			"RETURNING id",
-			id, u.Id, q, o, invoiceId).Scan(&orderId); err != nil {
-			return err
-		}
-
-		invDescription = fmt.Sprintf("create order %d for market %s", orderId, id)
-		if _, err = tx.ExecContext(ctx, ""+
-			"UPDATE invoices SET description = $1 WHERE id = $2",
-			invDescription, invoiceId); err != nil {
-			return err
-		}
-
-		if err = tx.Commit(); err != nil {
-			return err
-		}
-
-		qr = components.Invoice(hash.String(), paymentRequest, total, int(expiry), false, toRedirectUrl(invDescription))
-
-		return components.Modal(qr).Render(context.RenderContext(sc, c), c.Response().Writer)
 	}
 }

server/router/pages/components/head.templ

@@ -24,7 +24,6 @@ templ Head() {
 			}'
 		/>
 		<script src="/js/htmx.js" integrity="sha384-Xh+GLLi0SMFPwtHQjT72aPG19QvKB8grnyRbYBNIdHWc2NkCrz65jlU7YrzO6qRp" crossorigin="anonymous"></script>
-		<script defer src="/js/alpine.js" crossorigin="anonymous"></script>
 		if ctx.Value(c.EnvContextKey) == "development" {
 			<script defer src="/js/hotreload.js"></script>
 		}

server/router/pages/components/marketForm.templ

@@ -1,67 +0,0 @@
-package components
-
-import (
-    "git.ekzyis.com/ekzyis/delphi.market/types"
-
-    "fmt"
-    "strconv"
-)
-
-templ MarketForm(m types.Market, outcome int, q types.MarketQuote, uQ int) {
-    <form
-        id={ formId(outcome) }
-        autocomplete="off"
-        class="grid grid-cols-2 gap-3"
-        hx-post={ fmt.Sprintf("/market/%d/order", m.Id) }
-        hx-target="#modal"
-        hx-swap="outerHTML"
-        hx-select="#modal"
-    >
-        <input type="hidden" name="o" value={ fmt.Sprint(outcome) } />
-        <div class="none col-span-2 htmx-request" />
-        <label for="p">avg price per share:</label>
-        <div id="p">{formatPrice(q.AvgPrice)}</div>
-        <label for="q">how many?</label>
-        <input
-            id={ inputId(outcome) }
-            name="q"
-            class="text-black px-1"
-            type="number"
-            autofocus
-            hx-get={ fmt.Sprintf("/market/%d", m.Id) }
-            hx-replace-url="true"
-            hx-target={ fmt.Sprintf("#%s", formId(outcome)) }
-            hx-swap="outerHTML"
-            hx-select={ fmt.Sprintf("#%s", formId(outcome)) }
-            hx-trigger="input changed delay:1s"
-            hx-preserve
-            hx-disabled-elt="next button"
-            hx-indicator={ hxIndicator(outcome) }
-        />
-        <label for="total">you pay:</label>
-        <div id="total">{formatPrice(q.TotalPrice)}</div>
-        <label for="reward">{ "if you win:" }</label>
-        <div id="reward">+{formatPrice(q.Reward)}</div>
-        <label for="uQ">you have:</label>
-        <div id="uQ">{ fmt.Sprint(uQ) }</div>
-        <button type="submit" class="col-span-2">submit</button>
-    </form>
-}
-
-func formId (outcome int) string {
-    return fmt.Sprintf("outcome-%d-form", outcome)   
-}
-
-func inputId (outcome int) string {
-    return fmt.Sprintf("outcome-%d-q", outcome)
-}
-
-func hxIndicator (outcome int) string {
-    return fmt.Sprintf(
-        "#%s>#p, #%s>#total, #%s>#reward",
-        formId(outcome), formId(outcome), formId(outcome))
-}
-
-func formatPrice(p float64) string {
-	return fmt.Sprintf("%v sats", strconv.FormatFloat(p, 'f', 3, 64))
-}

server/router/pages/market.templ

@@ -8,13 +8,10 @@ import (
 
 // TODO: Add countdown? Use or at least show somewhere precise timestamps?
 
-templ Market(m types.Market, q0 types.MarketQuote, q1 types.MarketQuote, uQ0 int, uQ1 int) {
+templ Market(m types.Market) {
     <html>
 		@components.Head()
-		<body
+		<body class="container">
-			x-data="{ outcome: undefined }"
-			class="container"
-			hx-preserve>
 			@components.Nav()
 			<div id="content" class="flex flex-col">
 				<small>
@@ -24,42 +21,16 @@ templ Market(m types.Market, q0 types.MarketQuote, q1 types.MarketQuote, uQ0 int
 				<div class="text-center text-muted my-1">{humanize.Time(m.EndDate)}</div>
 				<div class="text-center text-muted my-1"></div>
 				<blockquote cite="ekzyis" class="p-4 mb-4 border-s-4 border-muted">
-					if m.Description != "" {
+					{ m.Description }
-						m.Description
-					} else {
-						&lt;empty&gt;
-					}
 					<div class="text-muted text-right pt-4">― {m.User.Name}, { humanize.Time(m.CreatedAt) }</div>
 				</blockquote>
-				<div class="flex flex-col justify-center my-1">
+				<div class="flex justify-center my-1">
-					<div class="flex flex-row justify-center">
+					<button class="neon success mx-1">BET YES</button>
-						<button
+					<button class="neon error mx-1">BET NO</button>
-							class="neon success mx-1"
-							x-on:click="outcome = outcome === 1 ? undefined : 1"
-							:class="{ 'active' : outcome === 1 }"
-						>
-							BET YES
-						</button>
-						<button
-							class="neon error mx-1"
-							x-on:click="outcome = outcome === 0 ? undefined : 0"
-							:class="{ 'active' : outcome === 0 }"
-						>
-							BET NO
-						</button>
-					</div>
-					<div class="mx-auto my-5" x-show="outcome === 1">
-						@components.MarketForm(m, 1, q1, uQ1)
-					</div>
-					<div class="mx-auto my-5" x-show="outcome === 0">
-						@components.MarketForm(m, 0, q0, uQ0)
-					</div>
 				</div>
-				
             </div>
 			@components.Modal(nil)
 			@components.Footer()
 		</body>
 	</html>
 }
-

server/router/router.go

@@ -17,7 +17,6 @@ func Init(e *echo.Echo, sc Context) {
 	e.GET("/create", handler.HandleIndex(sc))
 	e.POST("/create", handler.HandleCreate(sc), middleware.SessionGuard(sc))
 	e.GET("/market/:id", handler.HandleMarket(sc))
-	e.POST("/market/:id/order", handler.HandleOrder(sc), middleware.SessionGuard(sc))
 	e.GET("/about", handler.HandleAbout(sc))
 
 	e.GET("/login", handler.HandleAuth(sc, "login"))

types/types.go

@@ -37,16 +37,3 @@ type Market struct {
 	CreatedAt   time.Time
 	EndDate     time.Time
 }
-
-type LMSR struct {
-	B  float64
-	Q1 int
-	Q2 int
-}
-
-type MarketQuote struct {
-	Outcome    int
-	AvgPrice   float64
-	TotalPrice float64
-	Reward     float64
-}